Datasheet Summary
Dual Channel, 128-/256-Position, SPI, Nonvolatile Digital Potentiometer
Data Sheet
Features
10 kΩ and 100 kΩ resistance options Resistor tolerance: 8% maximum Wiper current: ±6 mA Low temperature coefficient: 35 ppm/°C Wide bandwidth: 3 MHz Fast start-up time < 75 µs Linear gain setting mode Single- and dual-supply operation Independent logic supply: 1.8 V to 5.5 V Wide operating temperature:
- 40°C to +125°C 3 mm × 3 mm package option 4 kV ESD protection
VLOGIC VDD
AD5122/AD5142
FUNCTIONAL BLOCK DIAGRAM
INDEP POWER-ON RESET
AD5122/ AD5142
RDAC1
A1 W1 B1
RESET SCLK SDI SYNC SDO SERIAL INTERFACE
INPUT REGISTER 1 RDAC2 7/8 INPUT REGISTER 2 EEPROM MEMORY
A2 W2 B2
APPLICATIONS
Portable...